Hindered amine light stabilizer

Details Hindered amine light stabilizer Hindered amine light stabilizer

1996-03-11

1997-11-18

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

524 99, 524100, 524102, 546255, 546350, C07D21114, C07D21170, C08K 534, C08K 535

Patent

active

056889518

ABSTRACT:
New N-substituted piperidines useful as light stabilizers in synthetic resins are disclosed. They are 1-(2,7-octadienyl)-2,2,6,6-tetraalkylpiperidines wherein the alkyl groups are independently selected lower alkyl groups such as methyl or ethyl and the 3 and 5 positions may be substituted by methyls. The ring may be monounsaturated; a new compound 1-(2,7-octadienyl)-2, 2,6,6-tetramethyl-3-pyridine is described.

REFERENCES:
patent: 3502725 (1970-03-01), Dewhirst
patent: 3652614 (1972-03-01), Dewhirst
patent: 3939170 (1976-02-01), Randell
patent: 3975357 (1976-08-01), Murayama
patent: 4960593 (1990-10-01), Sevini
patent: 5206396 (1993-04-01), Gruber
patent: 5236909 (1993-08-01), Gruber

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